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Primitive Perfect Isosceles Right Triangled Square

Title: __ 19:270AI GHM

Order: 19

Horizontal side: 270 Vertical side: 270

Elements: 1√2, 6√2, 7√2, 8√2, 12, 16, 12√2, 18, 24, 24√2, 74, 90, 98, 74√2, 106, 90√2, 98√2, 172, 180.

Code: 1805 0 90 1721 172 270 987 172 270 986 172 172 242 196 148 243 196 124 742 270 74 125 172 112 124 184 112 183 196 106 72 179 105 64 178 106 14 179 105 86 172 98 167 180 106 1063 196 0 905 0 0 904 90 0 743 270 0

The properties below may precede order:side in a tiling's title:

Credit for Discovery

Just three people are credited with the discovery of Primitive Perfects:

Geoffrey H. Morley (GHM, England)

Jasper D. Skinner, II (JDS, United States)

William T. Tutte (WTT, Canada, 1917-2002) (15:44AI, 17:136AJ and 19:56AJ only)

180
172
98
98√2
24√2
24
74√2
12
12√2
18
7√2
6√2
1√2
8√2
16
106
90
90√2
74